/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package sgt.supermarket.controller.product;

import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import sgt.supermarket.controller.XServlet;
import sgt.supermarket.entity.Category;
import sgt.supermarket.entity.Product;
import sgt.supermarket.hibernatedao.HibernateDAOFactory;
import sgt.supermarket.util.Converter;
import sgt.supermarket.util.ServletExtensions;

/**
 *
 * @author Administrator
 */
public class ListProducts extends XServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        HibernateDAOFactory factory = new HibernateDAOFactory();
        //select the category to be displayed
        Category catParent = null;
        if (request.getParameter("catid") != null) {
            catParent = factory.getCategoryDAO().getById(Converter.toLong(request.getParameter("catid")));
        } else {
            catParent = factory.getCategoryDAO().getRoot();
        }
        if (request.getMethod().equalsIgnoreCase("POST")){
            if (request.getParameter("removeId")!=null){
                Product productToRemove = factory.getProductDAO().getById(ServletExtensions.getLongParam(request, "removeId"));
                factory.getProductDAO().delete(productToRemove);
            }
        }
        request.setAttribute("title", "List of products");
        List<Product> products = factory.getProductDAO().getByCategory(catParent);
        request.setAttribute("catParent", catParent);
        request.setAttribute("products", products);
        request.getRequestDispatcher("/product.listProducts.tiles").forward(request, response);

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
